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Finding the Fourth Proportional to 179,620.60, 247,893 and 103,149.70

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Solution

The fourth proportional to 179,620.60, 247,893 and 103,149.70 is: 142,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,620.60 : 247,893 = 103,149.70 : x
  2. Step 2: Convert to fraction form
    179,620.60/247,893 = 103,149.70/x
  3. Step 3: Cross multiply
    179,620.60x = 247,893 × 103,149.70
  4. Step 4: Simplify right side
    179,620.60x = 25,570,088,582.10
  5. Step 5: Solve for x
    x = 25,570,088,582.10/179,620.60
  6. Step 6: Final answer
    x = 142,356.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.